摘要
为了研究金属射流(Shaped Charge Jet,JET)、爆炸成型弹丸(Explosively Formed Projectile,EFP)和聚能杆式射流(Jetting Projectile Charge,JPC)3种聚能侵彻体水中行进特性,在0.5D_(k)、1D_(k)、1.5D_(k)、2D_(k)(D_(k)为装药直径)4种炸高条件下,运用AUTODYN软件进行数值计算,对比分析3种侵彻体水中成型情况、有效长度、速度、动能4个方面特性。研究表明:当炸高大于0.5D_(k)时,相较于JET和EFP,JPC在水中行进过程中的拉伸程度适中,侵彻体连续性较好,空腔效应最优,整体速度和头部速度衰减量最小且衰减最慢,较长时间区间内整体动能最大且衰减最慢,有利于水中行进,炸高为2D_(k)时其水中行进特性达到最优;当炸高等于0.5D_(k)时,JPC未能充分拉伸且水中行进特性较差,其性能处在JET和EFP之间。
To investigate traveling characteristics of penetrators like shaped charge jet(JET),explosively formed projectile(EFP)and jetting projectile charge(JPC)in water,numerical cal-culations were carried out by AUTODYN software under four conditions of the stand-off dis-tance including 0.5D_(k),1D_(k),1.5D_(k) and 2D_(k)(D_(k):charge diameter).Thereby,characteristics includ-ing formation,effective length,velocity and kinetic energy of the three shaped charge penetrators were compared and analyzed.Results showed that when the stand-off distance is higher than 0.5 D_(k),JPC has a moderate degree of stretching,a better continuity of the penetrator and the optimal cavity effect than JET and EFP.Simultaneously,it has smallest and slowest attenuation of the remote velocity and the head velocity.Moreover,in a long time interval,JPC has biggest remote kinetic,whose attenuation is slowest.These characteristics of JPC is conducive to the traveling in the water.When the stand-off distance is 2D_(k),the traveling characteristics of JPC in water is op-timal.When the standoff is 0.5D_(k),the JPC fails to stretch sufficiently and has poor traveling char-acteristics in the water.At this time,the performance of JPC is between those of JET and EFP.
作者
王桂龙
陈兴
崔中华
叶天源
郭明开
WANG Guilong;CHEN Xing;CUI Zhonghua;YE Tianyuan;GUO Mingkai(School of Mechanical and Electrical Engineering,North University of China,Taiyuan 030051,Shanxi;Chongqing Qianwei Technology Group Co.,Ltd.,Chongqing 401121)
出处
《火箭军工程大学学报》
2024年第6期1-11,共11页
Journal of Rocket Force University of Engineering
